CN205342482U - Transmission and adopt this transmission's actuating system and rotary worktable - Google Patents
Transmission and adopt this transmission's actuating system and rotary worktable Download PDFInfo
- Publication number
- CN205342482U CN205342482U CN201620029927.2U CN201620029927U CN205342482U CN 205342482 U CN205342482 U CN 205342482U CN 201620029927 U CN201620029927 U CN 201620029927U CN 205342482 U CN205342482 U CN 205342482U
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- gear
- worm screw
- worm
- rotary table
- hole
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Abstract
The utility model provides a transmission for rotary worktable, the workstation has the ring gear, includes: a housing. Set up in gear shaft on the casing, the gear shaft includes gear portion and axial region, gear portion with the ring gear matches, set up regularly in worm wheel on the axial region of gear shaft, set up in worm in the casing, its axial motion can be followed to the worm, just the worm has the different tooth of a plurality of thickness, at least one the tooth with the worm wheel matches. In addition, this application still provides actuating system and a rotary worktable who adopts this transmission. The application provides a transmission and adopt this transmission's actuating system and rotary worktable has set up the tooth of different thickness on the worm. Through removing the worm for the tooth that has best thickness on the worm meshes with the worm wheel mutually, realizes worm and worm wheel's zero clearance transmission, its simple structure, easy manufacturing, the improvement that is showing transmission precision.
Description
Technical field
This utility model relates to the transmission field in machining, particularly to the actuating device of a kind of rotary table for Digit Control Machine Tool and adopt the driving device of this actuating device.
Background technology
At present, the rotary table of Digit Control Machine Tool must adopt closing to arrange, and therefore, the mechanical driving device for rotary table is had higher requirement.If the precision of the whole actuating device of rotary table is not high or there is back clearance between gear, then would become hard to ensure rotary table precision operationally and reliability.Whenever needing the precision adjusting the actuating device of rotary table, it is required for removing the external shell closing rotary table, operation inconvenience, wastes time and energy.
For the load-bearing small-sized rotary table below 5 tons, type of drive mainly include torque motor directly drive, big worm gear and worm speed-down driving, gear reduction box driving etc..It is relatively costly that torque motor directly drives, it is adaptable to high-end lathe, is not easy to popularize.The turbine diameter that big worm gear and worm speed-down drive is relatively big, is not easy to processing and manufacturing, and the material price manufacturing worm gear is higher, worm gear serious wear.Gear reduction box drives the gear reduction box structure adopted complicated, is unfavorable for being applied on small-sized rotary table.
Utility model content
In view of problems of the prior art, this utility model provides a kind of actuating device for rotary table, and described workbench has gear ring, including: housing；Being arranged at the gear shaft on described housing, described gear shaft includes gear part and axle portion, and described gear part is mated with described gear ring；It is fixedly arranged at the worm gear in the axle portion of described gear shaft；Being arranged at the worm screw in described housing, described worm screw can along its axially-movable, and described worm screw has the tooth that multiple thickness is different, and at least one described tooth mates with described worm gear.
In embodiments more of the present utility model, the plurality of tooth along the axially-aligned of described worm screw, and the thickness of the plurality of tooth by one end to other end progressive additive or thinning.
This setup is relatively simple.The thickness progressive additive of multiple teeth being arranged in order or thinning be relatively easy processing, reduces manufacturing cost.It addition, when worm screw is when enclosure interior is along the axially-movable of self, be also easier to so that the matched tooth being arranged on worm screw chosen by worm gear, thus completing tight mesh.
In embodiments more of the present utility model, the inwall of described housing is formed with chamber；First end of described worm screw is arranged in described chamber, and second end of described worm screw has been fixedly disposed positioning sleeve, and described positioning sleeve is connected with the inwall of described housing by tightening member；Described worm screw and described housing are configured to: when rotating described tightening member, described worm screw can along its axially-movable in described housing.
In order to not change shape and the structure of worm screw, can arranging positioning sleeve in some embodiments on worm screw, and adopt tightening member that positioning sleeve is fixed on the inwall of housing, so that when adjusting tightening member, positioning sleeve drives worm screw along its axially-movable.
In embodiments more of the present utility model, formed between described positioning sleeve and second end of described worm screw and seal space；It is provided with in described sealing space and organizes bearing more, rub with positioning sleeve main body during to avoid worm screw to rotate.
In embodiments more of the present utility model, the actuating device of described rotary table includes the cover plate being fixedly arranged at the axle portion end of described gear shaft；It is arranged at the adjustment packing ring between described worm gear and described inner walls.
In embodiments more of the present utility model, the actuating device of described rotary table includes the swelling element being arranged between described worm gear and described axle portion.
Except tooth and worm gear except selecting suitable worm screw is meshed, another key factor affecting transmission accuracy is the central plane perpendicularity with the central shaft of worm screw of worm gear high and low position in housing and worm gear.Those skilled in the art are it should be understood that when worm gear correct position in housing makes the central axis of the central plane of worm gear and worm screw, it will what enable that the tooth on worm gear and worm screw engages is more tight, thus reaching higher transmission accuracy.
This utility model additionally provides a kind of drive system for rotary table, including:
Any one actuating device as above；And driving device, described driving device has the output shaft for being connected with described worm screw.
In embodiments more of the present utility model, second end of described worm screw has the hole that can hold described output shaft；Swelling element it is provided with between described output shaft and described hole.
It addition, this utility model additionally provides a kind of rotary table, it is characterised in that including:
For carrying the pedestal of workbench；And it is fixed on upper any one described actuating device of described pedestal；Or any one drive system.
In embodiments more of the present utility model, it is arranged at the block that the cross section on described pedestal is substantially " ┒ " shape, is formed between described block and described pedestal and hold space；The installing plate of the strip being connected is fixed at middle part with described housing, and the fixing end of described installing plate is fixed on described pedestal, and the free end of described installing plate is positioned at described accommodation space；Being arranged at the elastic extrusion element for extruding described installing plate free end on described block, described elastic extrusion element can pass through to control the position of installing plate free end, so that described gear ring and described gear remain engagement.
In embodiments more of the present utility model, the free end of described installing plate arranges the first through hole；The vertical end of described block arranges the screwed hole being interconnected and the second through hole, the diameter of the diameter of the described second through hole diameter more than described first through hole and described screwed hole；Described extrusion element has the end mated with described first through hole and the afterbody mated with described screwed hole；Can also including the end being arranged at described extrusion element and the butterfly spring sheet being positioned at described second through hole, the diameter of described butterfly spring sheet is suitable with the diameter of described second through hole.
In present embodiment, extrusion element can select stair-stepping screw, and when revolving extrusion element, the cascaded surface extruding butterfly spring sheet of extrusion element makes its deformation, and butterfly spring sheet promotes installing plate to move towards the direction of pedestal.Therefore, gear and gear ring can remain good engagement.
Preferably, in order to enable installing plate to produce bigger deformation, namely the free end making installing plate can swing to a greater extent in accommodation space, it is also possible to offers otch at the middle part of installing plate, so that the free end of installing plate can swing with this incision for the strong point.
Actuating device that this utility model provides and adopt the drive system of this actuating device and rotary table to be provided with the tooth of different-thickness on worm screw.By mobile worm screw so that the tooth on worm screw with optimum thickness is meshed with worm gear, it is achieved the zero clearance transmission of worm and worm wheel.This utility model provide actuating device and adopt the drive system of this actuating device and the simple in construction of rotary table, it is easy to processing and manufacturing, improve transmission accuracy significantly.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, be briefly described as follows in embodiment or description of the prior art use accompanying drawing.
Fig. 1 show schematically show the rotary table structure of this utility model one embodiment；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the cooperation schematic diagram of gear and gear ring；
Fig. 4 is the partial enlarged drawing of C portion in Fig. 2；
Fig. 5 is the structural representation of the A-A hatching along Fig. 2；
Fig. 6 is the structural representation of the B-B hatching along Fig. 5；
Fig. 7 is the schematic diagram of the tooth of worm screw.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described.Explanation at this, it is clear that be only embodiments more of the present utility model shown in accompanying drawing, it is therefore an objective to make to skilled artisans appreciate that inner characteristic of the present utility model.Those of ordinary skill in the art according to disclosed accompanying drawing and explanation thereof, can make amendment or other equivalent modification or replacement scheme.Therefore, scope of the present utility model is not by the restriction of these accompanying drawings and explanation.
With reference to Fig. 1, this utility model provides a kind of rotary table, including workbench (not shown), pedestal 1, gear ring 2 and drive system 3.Gear ring 2 is fixed on the lower surface of workbench.Observe in order to convenient and describe, Fig. 1 eliminates workbench, only show pedestal 1, gear ring 2 and drive system 3.Drive system 3 is fixedly arranged at the side of pedestal 1.
In the present embodiment, the housing 31 of drive system 3 is connected with pedestal 1 by installing plate 4.Drive system 3 has the gear 32 stretching out its housing 31.Gear 32 and above-mentioned gear ring 2 have the tooth matched, and when therefore gear 32 rotates, it can drive gear ring 2 to rotate together.The concrete structure of drive system 3 is by described below.
Referring to Fig. 1, Fig. 2 and Fig. 4, installing plate 4 substantially in strip, have in the middle part of it extend horizontally away curved portions 41.Installing plate 4 is connected by screw is fixing with the housing 31 of drive system 3 by horizontal-extending curved portions 41.One end of installing plate 4 is fixably attached on pedestal 1, and the other end becomes free end unfetteredly.The free end of installing plate 4 is offered a through hole 42.Being provided with block 11 on pedestal 1, its cross sectional shape, substantially in " ┒ " shape, is formed between block 11 and pedestal 1 and holds space 7.The free end of installing plate 4 is positioned at described accommodation space 7.With reference to Fig. 4, the vertical portion of this block 11 is offered the through hole 111 and screwed hole 112 that are interconnected.The diameter of the diameter of through hole 111 diameter more than screwed hole 112 and through hole 42.
Screw 5 has hierarchic structure, and it includes the less end of diameter 51 and the afterbody 52 being relatively large in diameter, and described end 51 can via within the through hole 42 of entrance installing plate 4 after through hole 111, and described afterbody 52 can be threadeded with the screwed hole 112 of block 11.
The sheathed disc spring film 6 in end 51 of screw 5, and butterfly spring sheet 6 is positioned at through hole 111.
According to above-mentioned setting, operator can pass through rotary screw 5 forward or backwards, thus adjusting the decrement of disc spring film 6, and then adjusts the spring force of disc spring film 6.When the transverse tooth thickness of gear ring 2 or gear 32 is less than theoretical value, disc spring film 6 discharges (free end of installing plate 4 to left movement), to promote gear 32 close to gear ring 2.When the transverse tooth thickness of gear ring 2 or gear 32 is bigger than theoretical value, disc spring film 6 is compressed (free end of installing plate 4 moves right), is maintained to gear 32 near gear ring 2.Therefore, the tooth of gear 32 can automatically tightly engage with the tooth of gear ring 2 all the time.And then control the degree of engagement of the gear 32 of gear ring 2 and drive system 3.As it is shown on figure 3, the two sides of the tooth of gear 32 fit with the tooth of gear ring 2 all the time, with the gear backlash eliminating manufacture, alignment error is brought, it is achieved clearance automatic compensation, complete gapless driving.
In an embodiment of the present utility model, the middle part of installing plate 4 has otch D.Arrange otch D can the rigidity that reduce installing plate 4 of local so that the free end of installing plate 4 can along the bigger swingingly amplitude of left and right directions as shown in Figure 2.
Those skilled in the art are it should be understood that installing plate 4 is not necessarily required to.When the shape of the housing 31 of drive system 3 has the shape similar with installing plate 4, namely housing 31 disclosure satisfy that installation location needs, then can be installed on rotary table pedestal 1 either directly through aforesaid way by housing 31, to reach to omit the purpose of installing plate 4.Additionally, block 11 is also inessential, it is possible to by the manufacturing process of various routines so that pedestal 1 self has outward extending bending part, to play the effect identical with block 11.
With reference to Fig. 5 and Fig. 6, drive system 3 includes housing 31, gear 32, worm gear 33, worm screw 34, driving device 35.As it has been described above, except gear 32 is arranged at the outside of housing 31, it is internal that worm gear 33, worm screw 34 and driving device 35 are arranged at housing 31.
In the present embodiment, a surface of gear 32 extends to form axle 321, and the diameter of gear 32 is more than the diameter of axle 321, and actually gear 32 and axle 321 constitute gear shaft.Certainly, gear 32 and axle 321 can also be two independent parts.
Housing 31 is provided with the hole suitable with axle 321 diameter.During installation, gear 32 is positioned at the outside of housing 31, and axle 321 is then penetrated in housing 31 by the hole on housing 31.Gear 32 engages with the gear ring 2 being located at turn around on workbench pedestal 1.Equipped with bearing 322 on the axle 321 of gear 32, being fixed in the dead eye of installing plate 4,4 dead eyes of installing plate are provided with shoulder block 43.By the cooperation of bearing 322 and shoulder block 43, not only limit the axial displacement of gear 32, and reduce frictional force when bearing 322 rotates.
Worm gear 33 is sheathed on axle 321 regularly, and can coordinate with the worm screw 34 being arranged within housing 31.The rotation of worm screw 34 can be conducted to gear 32 by worm gear 33.The diameter of worm gear 33 is more than the bore dia on housing 31.
Worm gear 33 is fixed on axle 321 by detent mechanism 38, and can change the worm gear 33 height in housing 31 by regulating detent mechanism 38.Specifically, detent mechanism 38 includes cover plate 381, screw 382, expansion sleeve 383, adjusts packing ring 384 and shoulder block 385.Cover plate 381 is connected by screw 382 is fixing with axle 321, and worm gear 33 is pressed on axle 321 by cover plate 381 in advance, and arranges expansion sleeve 383 between worm gear 33 and axle 321.Axle 321 is provided with shoulder block 385, adjustment packing ring 384 is set between shoulder block 385 and worm gear 33.
Therefore, as long as changing the thickness adjusting packing ring 384, just can change the high and low position of worm gear 33, and then adjusting the central plane of worm gear 33 and the central axis degree of worm screw 2.The thickness adjusting packing ring 384 is adjusted by the mode of match grinding, and after adjustment, rotary screw 382, so that cover plate 381 compresses worm gear 34, finally swelling expansion sleeve 383 again, thus being fixed on worm gear 33 on gear 32.Arranging in the manner described above, the central plane of worm gear 33 remains vertical with the central shaft of worm screw 2, so that can better engage therebetween.
In embodiments more of the present utility model, if the inwall of housing 31 can form the shape identical with shoulder block 385, then shoulder block 385 is dispensed with.
With further reference to Fig. 6, housing 31 there is a chamber 311, be fixedly disposed bearing 312 in this chamber 311.First end of worm screw 34 is arranged in this chamber 311, and bearing 312 can be sheathed on first end of worm screw 34.As shown in Figure 6, it is generally the case that first end of worm screw 34 is not conflicted with the inwall of the shell 31 forming chamber 311, but leaves certain mobile space, so that worm screw 34 can along the axially-movable of self.It should be understood that according to such setting, worm screw 34 can rotate, it is also possible to move along above-below direction as shown in Figure 6.
Second end of worm screw 34 has been fixedly disposed positioning sleeve 36.Positioning sleeve 36 is connected by tightening member 37 is fixing with the inwall of housing 31.Tightening member 37 can include screw 371 and screw 372.When trip bolt 371, lax screw 372, positioning sleeve 36 promotes worm screw 34 to be moved upward, and first end of worm screw 34 is by deeper of entrance chamber 311.When lax screw 371, trip bolt 372, positioning sleeve 36 drives worm screw 34 to move downwards, and first end of worm screw 34 will then revert to be positioned at the position that chamber 311 is shallower.
In an embodiment of the present utility model, described positioning sleeve 36 includes positioning sleeve main body 361, gland 362, bearing 363 and locking nut 364.Being formed between positioning sleeve main body 361 and second end of described worm screw 34 and seal space, load bearing 363 in this sealing space, the outer ring of bearing 363 is compressed by gland 362, and by gland 362 and positioning sleeve main body 1 fixed-link.The inner ring of bearing 363 is locked by locking nut 364.Such worm screw 34 just constitutes an entirety with positioning sleeve 36, changes the axial displacement of positioning sleeve 36, and worm screw 34 just moves axially therewith, and the frictional force produced when favourable reduction worm screw 34 rotates.
It practice, housing 31, gear 32, worm gear 33 and worm screw 34 constitute actuating device.
Second end of worm screw 34 is connected with the output shaft of driving device 35, arranges swelling element between described output shaft and described hole.During the output shaft rotation of driving device 35, worm screw 34 is driven.Housing 31, gear 32, worm gear 33, worm screw 34 and driving device 35 constitute drive system 3.
With reference to shown in Fig. 7, worm screw 34 has multiple tooth 341 along its axially-aligned, and the thickness of its multiple teeth 341 is different, and it is thickening or thinning gradually to the other end by one end.Solid line in Fig. 7 represents Changeable Lead gradually thick profile of tooth, and dotted line represents standard tooth form.T is nominal axial pitch, t1For right side axial pitch, t2For left side axial pitch, Δ t is the difference of left side axial pitch, right side axial pitch and nominal axial pitch, then t1=t+ Δ t, t2=t-Δ t, therefore, t1 >t2(right side axial pitch is more than left side axial pitch), namely axial pitch is gradually increased from left to right.
It can thus be seen that with the thickness t/2 of some tooth middle for standard value, then the thickness of the tooth being positioned at the left side of this tooth successively decreases successively, and the thickness of the tooth being positioned at the right side of this tooth is incremented by successively, forms the transverse tooth thickness of a kind of gradual change.
When worm screw 34 is moved, it is possible to adjust the position relative to gear 2 of the tooth 341 on worm screw 34, so that the tooth of optimum thickness can engage with gear 2, to eliminate gap.
In sum, the actuating device that this utility model one embodiment provides, the drive system adopting this actuating device and rotary table can pass through the position of engagement adjusting the tooth on installing plate 4 and the distance (gear 32 and gear ring 2 relative position in the horizontal direction) of pedestal 1, worm gear 33 position (central plane of worm gear 33 and the perpendicularity of worm screw 34 central shaft) in housing 31 and worm gear 33 and worm screw 34 to eliminate gap, reach to improve the purpose of reliability, accurate transmission.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of this utility model.
Claims (11)
1., for the actuating device of rotary table, described workbench has gear ring, it is characterised in that including:
Housing；
Being arranged at the gear shaft on described housing, described gear shaft includes gear part and axle portion, and described gear part is mated with described gear ring；
It is fixedly arranged at the worm gear in the axle portion of described gear shaft；
Being arranged at the worm screw in described housing, described worm screw can along its axially-movable, and described worm screw has the tooth that multiple thickness is different, and at least one described tooth mates with described worm gear.
2. the actuating device for rotary table according to claim 1, it is characterised in that:
The plurality of tooth along the axially-aligned of described worm screw, and the thickness of the plurality of tooth by one end to other end progressive additive or thinning.
3. the actuating device for rotary table according to claim 2, it is characterised in that:
The inwall of described housing is formed with chamber；
First end of described worm screw is arranged in described chamber, and second end of described worm screw has been fixedly disposed positioning sleeve, and described positioning sleeve is connected with the inwall of described housing by tightening member；
Described worm screw and described housing are configured to:
When rotating described tightening member, described worm screw can along its axially-movable in described housing.
4. the actuating device of rotary table according to claim 3, it is characterised in that:
Formed between described positioning sleeve and second end of described worm screw and seal space；
It is provided with in described sealing space and organizes bearing more.
5. the actuating device of the rotary table according to claim 1 or 3, it is characterised in that including:
It is fixedly arranged at the cover plate of the axle portion end of described gear shaft；
It is arranged at the adjustment packing ring between described worm gear and described inner walls.
6. the actuating device of rotary table according to claim 5, it is characterised in that including:
It is arranged at the swelling element between described worm gear and described axle portion.
7. for the drive system of rotary table, it is characterised in that including:
Actuating device as according to any one of claim 1～6；And
Driving device, described driving device has the output shaft for being connected with described worm screw.
8. the drive system for rotary table according to claim 7, it is characterised in that:
Second end of described worm screw has the hole that can hold described output shaft；
Swelling element it is provided with between described output shaft and described hole.
9. rotary table, it is characterised in that including:
For carrying the pedestal of workbench；And
It is fixed on the actuating device as according to any one of claim 1～6 of described pedestal；Or
Drive system as described in claim 7 or claim 8.
10. rotary table according to claim 9, it is characterised in that including:
It is arranged at the block that the cross section on described pedestal is substantially " ┒ " shape, is formed between described block and described pedestal and hold space；
The installing plate of the strip being connected is fixed at middle part with described housing, and the fixing end of described installing plate is fixed on described pedestal, and the free end of described installing plate is positioned at described accommodation space；
Being arranged at the elastic extrusion element for extruding described installing plate free end on described block, described elastic extrusion element can pass through to control the position of installing plate free end, so that described gear ring and described gear remain engagement.
11. rotary table according to claim 10, it is characterised in that:
The free end of described installing plate arranges the first through hole；
The vertical end of described block arranges the screwed hole being interconnected and the second through hole, the diameter of the diameter of the described second through hole diameter more than described first through hole and described screwed hole；
Described extrusion element has the end mated with described first through hole and the afterbody mated with described screwed hole；
Also include:
Being arranged at the end of described extrusion element and be positioned at the butterfly spring sheet of described second through hole, the diameter of described butterfly spring sheet is suitable with the diameter of described second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620029927.2U CN205342482U (en) | 2016-01-13 | 2016-01-13 | Transmission and adopt this transmission's actuating system and rotary worktable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620029927.2U CN205342482U (en) | 2016-01-13 | 2016-01-13 | Transmission and adopt this transmission's actuating system and rotary worktable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205342482U true CN205342482U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620029927.2U Expired - Fee Related CN205342482U (en) | 2016-01-13 | 2016-01-13 | Transmission and adopt this transmission's actuating system and rotary worktable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205342482U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458747A (en) * | 2016-01-13 | 2016-04-06 | 沈机集团昆明机床股份有限公司 | Transmission device as well as drive system adopting transmission device and rotary workbench |
| CN109318186A (en) * | 2018-10-16 | 2019-02-12 | 中国矿业大学 | It is a kind of can continuous rotary four-degree-of-freedom workbench |
| CN112108893A (en) * | 2019-06-20 | 2020-12-22 | 津田驹工业株式会社 | Inclined rotary worktable device |
-
2016
- 2016-01-13 CN CN201620029927.2U patent/CN205342482U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458747A (en) * | 2016-01-13 | 2016-04-06 | 沈机集团昆明机床股份有限公司 | Transmission device as well as drive system adopting transmission device and rotary workbench |
| CN105458747B (en) * | 2016-01-13 | 2018-03-27 | 沈机集团昆明机床股份有限公司 | rotary table |
| CN109318186A (en) * | 2018-10-16 | 2019-02-12 | 中国矿业大学 | It is a kind of can continuous rotary four-degree-of-freedom workbench |
| CN109318186B (en) * | 2018-10-16 | 2021-03-02 | 中国矿业大学 | Four-degree-of-freedom working platform capable of continuously rotating |
| CN112108893A (en) * | 2019-06-20 | 2020-12-22 | 津田驹工业株式会社 | Inclined rotary worktable device |
| CN112108893B (en) * | 2019-06-20 | 2024-05-07 | 津田驹工业株式会社 | Tilting rotary table device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20210113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |